Mining-drill.



No, "7881598. PATENTED MAY 2, 1905. P. w. OLGOTT. MINING DRILL.

APPLICATION FILED JUNE 19, 1899.

2 SHEETS-SHEET 1.

No. 788,593. PATENTED MAY 2, 1905.

1-". W. OLOOTT.

MINING DRILL.

APPLICATION FILED JUNE 19, 1899.

2 snnm'wsusz'r 2.

71527265565 6 [22 Men Z02" NITED STATES Patented May 2, 1905.

PATENT OFFICE.

FREDERIC WVILKINSON ()LOOTT, OF THE UNITED STATES NAVY, ASSIGNOR TO H.FREDERICA OLCOTT, OF KINGSTON, NEW YORK.

MINING-DRILL.

SPECIFICATION forming part of Letters Patent No. 788,593, dated May 2,1905.

Application filed June 19, 1899. Serial No. 721,139.

To all 1071,0172, it may consume:

Be it known that 1, Fnnnnnio WILKINSON OLoo'r'r, of the United StatesNavy, have invented a new and useful Mining-Drill,of which the followingis a specification.

The object of my invention is to provide a mining-drill which can beconveniently set in position, operated, and moved about by a singleoperator, the drill to be driven by a flexible shaft driven by anysuitable motor such as an electric motor, a compressed-iii r motor,orany. other suitable form of machinefor imparting rapid rotary motiontothe drill.

An important object to be attained is extreme portability of themachine, the parts to be as light as consistent with the requiredstrength.

An object of my invention is to provide superior and simple meanswhereby the drill can be read ily operated at any angle, horizontal orvertical, and adjusted to any elevation and can be readily advancedwhile in motion and can also be readily retracted.

By my invention the operator can clutch the rapidly-rotating drill andapply the nec cssary pressure to feed the drill.

The accompanying drawings illustrate my invention.

Figure 1 is a perspective view of my rotary drill in operative position.The operating lever is shown in a horizontal plane; but it is to beunderstood that such lever can be adjusted at any angle desired. Fig. 2is a fragmental sectional elevation on line 2 9., Fig. 1. Fig. 3 is asectional detail of the water-receiving joint. Fig. lis a longitudinalmid-section of the clutch-box, showing a fragment of the rotary drillintact. The feeding-clutch is shown in engagement with the drill. Fig. 5is a section on line 5 5, Fig. 4. Fig. 6 is a perspective detail of theclutch-shifting collar with a fragment of the clutclnbox. Fig. 7 isalongitudinal sectional detail of the drillsupporting bearing. Fig. 8 isan elevation of the clutch-box with its lever and with drill in place.Fig. 9 is a section on line 9 9, Fig. i, looking to the right. Fig. 10is a detail showing in elevation the clutch cams oiujaws with connectingspring and link viewed from the right in Fig. 9. The box and ring forholding the cams are shown in section. Line 10 10, Fig. 9, indicates theplane of view.

A indicates the rotary drill, carried by the drill-bearingB, in whichthe drill rotates.

C indicates a pivoted post with an adjustable support 0 for the bearingB.

D indicates the clutclrbox, surrounding the drill and pivotally mountedin a leverE by pivots e e. The lever E is connected with the bearing 1%by means of a connecting-rod 2, pivoted to the lever at 1 and pivoted at1 to an arm 3, which projectsi'romthe bearing B.

M indicates an electric motor driving a flexible shaft F, which isfastened to the rotary drill A to rotate the same. The clutching 1eviceD comprises a box (Z, a ring (Z, mounted to rotate within the box,automatic springactuated clutching cams or jaws 5 5, pivoted to the ringd at d". The cams 5 5 project at one side of the drill-engaging portionsof the cam, and the projecting portions are connected by springs 6 6.Links 7 connect the cams substantially in a line parallel with the axesof the springs, so that the springs 6 at the projecting portions of thecams will throw the cams to engage the rotary drill A. The springsconstitute means to automatically hold the clutch in engagement with thedrill. Suitable means are provided for releasing the cams fromengagement with the drill. G indicates a shifting ring for this purpose,said ring being operatively connected with a yokelever g, by which thering can be shifted into engagement with the cams 5 or out of engagementtherewith at pleasure.

1' indicates slots in the ring Gr to allow the pivots g of theyoke-lever to carry the collar to and from the cams without binding.

9' indicates a latch for the lever g to lock 9 it in position to holdthe camsout of engagement when required.

5 5 indicate other two cams similar to the clutching-cams 5 5, and theseare connected by springs 6 and links 7' in the same mannor and for thesame purpose as the links and springs of the cams 5 5. are

The cams o o pivoted in the clutching-collar directly and are disposedin a manner opposite to that of the cams 5 5, so that the cams 5 5" willnormally clutch the rotary drill to move it in a direction opposite tothat in which the cams 5 5 will move the drill. The purpose of the cams5 5 is to withdraw the drill in a direction opposite to that in which itwill be carried by the cams 5 5. The shifting ring Gr is adapted toshift from the cams 5 5 to the cams 5" 5 and to force either of the camsout of the clutching position. In Fig. 4 the shifting collar is shown inengagement with the cams 5 5, holding them away from the rotary drilland leaving the cams 5 5 in engagement with the drill to rotate with it.The box (Z and the ring (Z are each provided with ball-bearing cups 6,in which are balls 8 to form a ball-bearing between the box and the ringd. The purpose of this is to prevent friction between the box (Z and therotary ring d when pressure is applied to the box to force the drillinto the face to be mined. The pressure exerted by the operator on thelever to force the drill forward is exerted entirely upon theball-bearing. The drill-bearing B is pivoted in bearings a, which areadj ustably mounted on the pivoted support-post C, which is providedwith adjustable points 0 c at the lower and upper ends to enter thefloor and roof of the chamber or tunnel in which the drilling is goingon. The point 0 is adjustable by means of a screw 9, and the point 0 isslidable lengthwise of the post C in order to be quickly slipped toadjust the length of the post, as required for the depth or width ofchamber, drift, or tunnel in which the tool is being operated.

c 0 indicate angle-irons to which the yoke carrying the bearing 0 isclamped by any suitable means, such as the thumb-screws 0 so that'thebearing can be raised or lowered to any desired height. The bearing 0allows the drill or drill-spindle to be tilted to any angle. Thedrill-bearing B is a hollow spindle-bearing and is held bya clampingtrunnion-collar Z) and can be turned in the collar 6 by loosening thebolt 7), by which the trunnion-collar Z) is clamped to the drill-bearingB. By loosening the clamp-bolt b the bearing B can be rotated so as tobring the lever E into any position desired. Byloosening thethumb-screwsc the drill can be raised and lowered up and down the angle-irons 0 0 Hindicates a water-joint sleeve provided with a hollow handle It, intowhich the water is introduced through the valve It from the hose 1.

It" indicates an annular channel communicating with the bore of thehandle it and surrounding the rotary drill A, which has a central borea, which communicates with the channel /Lby lateral ducts a, so that therotary member A can turn at any speed required and water will be fedthrough the duct a into the central bore a of the drill. Thedrill-bearing B is provided with ball-bearings 7) at its opposite ends,so that the rotary drill A may be rotated freely within the sleevewithout friction.

In practical operation the post C will be set in position at the placedesired and the points 0 0 adjusted to engage the roof or floor of thechamber and suitably near to the face to be mined. If desired, the postcan be set horizontally in a drift or tunnel and the points 0 0 be setinto the walls instead of into the roof and floor. The screw-threadedpoint 0 will be turned to force the point into the floor or wall to holdthe post firmly. Then the support 0 will be adjusted on the post to theheight desired. The operator will then throw the lever g to shift thering G to throw the drill-withdrawing clutch-cams 5" 5 away from thedrill and will lock the lever g in that position by means of the bolt g.The clutchcams 5 5 are thus left free to be thrown by the springs 6 intothe clutching position, as shown in Fig. 4, thereby clutching the drill.Then water is admitted through the hose I, and the motor M is set intooperation to rotate the flexible shaft F. The clutch-collar (Z rotatesfreely within the box. Then the operator will grasp the lever E and pushupon it to move the boX D toward the post, and this pressure is appliedto the collar d through the ball-bearing d 8, and the clutch-cams 5 5are thus caused to force the drill forward. By this means the drill isfed to the limit of the movement of the lever E. Then if it is desiredto continue feeding the drill the lever is drawn back, thus sliding theclutch back along the drill. Then the lever is again moved forward, thusagain feeding the drill in the manner above described.

When it is desired to remove the drill from the hole, the motor will bestopped and the lever g adjusted to throw the shifting ring G intoengagement with the cams 5 5 to release said cams from the drill. Thisallows the springs 6 to draw the cams 5" 5 into engagement with thedrill to clutch the drill to draw it out. The clutch therefore is areversing clutch, permitting forward or rearward movement of the drillto a considerable distance by successive reciprocation of the leverthrough a less distance.

hen the ring G is midway between the cams, the springs draw both thecams into engagement with the drill, so that the drill can be moved ineither direction by moving the box.

it indicates set-screws to hold the pivot-point 0 of the post or frame0.

Now, having described my invention, what 1 claim as new, and desire tosecure by Letters Patent, is

1. The combination of a rotary drill; a bearing in which the drillrotates; a box carried by the drill; clutch mechanism, rotatably mountedin the box and adapted to release from the drill and to clutch the drilland rotate therewith; manual operating means carried by the box andoperatively connected with the hearing for moving the box; and means forrotating the drill.

2. The combination of a rotary drill; a bearing in which the drillrotates; a clutch-box carried by the drill; a clutch rotatably mountedin the box for clutching and releasing the drill; a motor; aflexibleshaft fastened to the drill and connected with the motor forcommunicating power from the motor to rotate the drill; and a levercarried by the box and operatively connected with the bearing for movingthe box.

The combination with a rotar drill; of a box mounted on the drill; aring mounted to rotate within the box; clutching-jaws carried by thering and arranged to engage the drill; spring-operated means toautomatically hold the jaws in engagement with the drill; and means forreleasing the jaws from engagement with the drill.

4. The combination with a rotary drill, of a box around the drill; varing around the drill and arranged to rotate in the box; clutch-jawspivoted in the ring and arranged to normally clutch the drill; otherjaws pivoted in the box and arranged to normally clutch the drill; andmeans for disengaging one or the other of the clutches from the drill.

5. The combination with a rotary drill, of a box surrounding the drill;a ring surrounding the drill and arranged to rotate in the box;clutching -jaws pivoted in the ring and arranged to normally clutch thedrill; other jaws hinged to the ring and arranged to normally clutch thedrill; a shifting ring around the drill between the clutching-jaws; andmeans for moving the shifting ring into engagement with one or the otherof the clutches to disengage the same.

6. The combination with a rotary member; of a box around such member;manual operating means for moving the box axially of said rotary member;a ring rotatably mounted within the box, around said rotary member; andautomatic spring-actuated clutching-cams carried by the ring to normallyengage the rotary member to clutch the same at the initial movement ofthe box axially of said member in one direction, and to release saidmember when the box is moved in the opposite direction.

7. The combination of a bearing, a drillspindle movable rotatably andlongitudinally in said bearing, a non-rotary member surrounding saidspindle, a ring rotatably mounted around said spindle; bearing-ballsbetween a face of the said member and a face of the ring; and automaticclutch means connected to said ring to clutch the ring to the spindleupon relative longitudinal movement of the ring on the spindle, in onedirection, and to release such clutch connection upon movement of thering in the other direction, and operating means connected to theaforesaid bearing and non-rotary member to move said memberlongitudinally.

8. The combination with a rotary member, of a box around the member; aring journaled in the box; a clutch-jaw carried by the ring andextending in cam shape along the rotary member and extending laterallybeyond the sides of the rotary member; links attached to the jawssubstantially in line with their pivotal supports; and springs attachedto a projecting limb of the jaws to throw the jaws into action.

9. The combination of a rotary drill; a pivoted bearing in which thedrill rotates; a clutch -box around the drill; an automatic clutchrotatably mountedwithin the box to clutch the drill to move it axiallyin one direction and to release it in the other direction; a lever towhich the clutch-box is pivoted; and a connecting-rod pivoted at one endto the bearing and at the other end to the lever.

10. The combination with a rotating drill; of a box carried by thedrill; two oppositelyarranged automatic clutching devices carried by thebox for alternately clutching and releasing the drill to advance andretract it respectively; manual operating means for controlling theclutching devices; and means for moving the box to advance or retractthe drill.

11. The combination of a rotary drill; a flexible shaft attached to therotary drill for driving the same; a pivoted post; anadjustable supporton the post; a bearing pivoted in the support; a rotary drill in thebearing; a box around the drill; a clutch rotatably mounted in the box;a lever pivoted to the box; and a connecting-rod pivotally connectedwith the lever and with the bearing.

12. The combination of a rotary drill pivotally mounted on a support; abox around the drill; an automatic clutch carried by the box andarranged to rotate therein to clutch the drill when moved axially in onedirection and to release it when moved in the opposite direction; and alever to which the box is pivoted. 13. In a drill, a support, a yokemounted thereon, a spindle-bearing mounted in the yoke so as to berotatably adjustable, a spindle rotatably mounted in the bearing, andmanual operating means connected with the bearing and rotatabletherewith, for moving the spindle longitudinally.

14. In a drill, a support, a yoke mounted thereon, a hollowspindle-bearing mounted in the yoke so as to be rotatably adjustable, aspindle rotatably mounted in the bearing, and manual operating meansconnected with the bearing and rotatable therewith and releasablyconnected with the spindle for moving it longitudinally.

15. In a drill, a support, a yoke mounted thereon, a hollowspindle-bearing mounted in &

the yoke so as to be rotatably adjustable, a longitudinally-movablespindle rotatably mounted in the bearing, and manual operating meansconnected therewith and releasably connected with the spindle for movingit longitudinally.

16. In a drill, a support, a yoke mounted thereon, a hollowspindle-bearing pivotally mounted in the yoke so as to be rotatablyadjustable, a longitudinally-movablespindle rotatably mounted in thebearing, a lever connected with the bearing to be rotated therewith, andclutch means connected with said lever and engaging said spindle totransmit movement of the lever in one longitudinal direction, to thespindle, and to release the connection between the lever and spindle onmovement of the former in the opposite direction.

17. In a drill, a spindle-bearing, a spindle movable longitudinally androtatably in said bearing, a clutch having two relatively rotatablemembers to engage and move the spindle longitudinally when the clutch ismoved respectively forward or rearward of the drill, and operating meansfor moving the clutch members longitudinally of the drill.

18. In a drill, a support, a hollow spindlebearing mounted on thesupport so as to be rotatably adjustable, a longitudinally-movablespindle rotatably mounted in the bearing, a two-part clutch detachablyconnected with the spindle, means common to both of said parts fordetaching either of said parts from the spindle, and means forconnecting one of said parts of the clutch with the spindle-bearing.

19. In a drill, a support, a hollow spindlebearing mounted on thesupport so as to be rotatabl y adjustable, a longitudinal ly-movablespindle rotatably mounted in the bearing, a two-part clutch detachablyconnected with the spindle, a ring on the spindle between said parts, alever for moving the ring in either direction upon the shaft, and meansfor connecting one of said parts with the spindlebearing.

20. In a drill, a support, a hollow spindlebearing mounted on thesupport so as to be rotatably adjustable, a longitudinally-movablespindle rotatably mounted in the bearing, a two-part clutch detachablyconnected with the spindle, one of said parts being slotted, a ring onthe spindle between said parts, a lever pivotally mounted on the slottedpart, one end of the lever engaging with the ring and the other endprojecting through the slot and provided with means for locking it inposition when the ring is in engagement with either one of said parts,and means for con-- necting the slotted part with the spindle-bearmg.

21. In a drill, a support, a hollow spindlebearing mounted on thesupport so as to be rotatably adjustable, a longitudinally-movablespindle rotatably mounted in the bearing, a two-part clutch detachablyconnected with the spindle, one of said parts being slotted and saidslot being provided with a shoulder at each end, a slotted ring on thespindle between said parts, a lever pivotally mounted on the slottedpart, one end of which is provided with a yoke and means for engagingwith the ring, and the other end projects through the slot, alocking-bolt on the projecting end of the lever for engaging with saidshoulders, and means for connecting the slotted part of the clutch withthe spindle-bearing.

22. In a drill, a support, a hollow spindlebearing mounted on thesupport so as to be rotatably adjustable, a longitudinally-movablespindle rotatably mounted in the bearing, a clutch-box connected withthe bearing and mounted on the spindle, an annular member rotatablymounted in the box, two pairs of jaws, one for the box and the other forthe member, each of said jaws being normally in contact with thespindle, and means for moving said jaws out of engagement with thespindle.

23. In a drill, a support, a hollow spindlebearing mounted on thesupport so as to be rotatably adjustable, a longitudinally-movablespindle rotatably mounted in the bearing, a clutch-box connected withthe bearing and mounted on the spindle, an annular member rotatablymounted in said box, two pairs of curved jaws, one pair for the box andthe other pair for the member, each jaw being provided with aknuckle-bearing and having a curved clamping-surface, the pairs of jawsbeing arranged opposite to each other longitudinally of the spindle andthe jaws of each pair being upon opposite sides of the spindle, andmeans for moving either pair of jaws out of engagement with the spindle.

24. In a drill, a support, a hollow spindlebearing mounted on thesupport so as to be rotatably adjustable, a longitudinally-movablespindle rotatably mounted in the bearing, a clutch-box connected withthe bearing and mounted on the spindle, an annular member rotatablymounted in the box, two pairs of curved jaws arranged opposite to eachother longitudinally of the spindle, each jaw being elongated incross-section and having a pivot projecting from the outer curvedsurface at its inner edge, means connected with the outer edges of thejaws upon opposite sides of the spindle for normally holding them incontact with the spindle, and means for forcing the jaws of either pairout of contact with the spindle.

25. In a drill, a support, a hollow spindlebearing mounted on thesupport so as to be rotatably adjustable, a longitudinally-movablespindle rotatably mounted in the bearing, a clutch-box connected withthe bearing and mounted on the spindle, said box being provided with twomembers, the adjacent faces of which are annularly grooved and one ofthem is rotatable relatively to the other, anti- IOC IIC

friction-balls within said grooves, jaws connected with said members andnormally engaging with the spindle and means for releasing the jaws fromthe spindle.

26. In a drill, a support, a hollow spindlebearing mounted on thesupport so as to be retatably adjustable, a longitudinally-movablespindle rotatably mounted in the bearing, a two-part clutch connectedwith the bearing and mounted on the spindle, each part of the clutchbeing provided with a pair of curved jaws, each jaw being elongated incross-section and having a pivot projecting from the outer curve of theinner edge, a spring for connecting the oppositely-located ends of eachpair of jaws at the outer edges and normally forcing the inner edges ofsaid jaws into contact with the spindle, and means for moving theopposite edges away from each other, whereby the jaws are released fromthe spindle and the springs are placed under tension.

27. In a drill, a support, a hollow spindlebearing mounted on thesupport so as to be rotatably adjustable, a longitudinally-movablespindle rotatably mounted in the bearing, a two-part clutch connectedwith the bearing and mounted on the spindle, each part of the clutchbeing provided with a pair of springpressed curved jaws, each end ofsaid jaw being flat and in line with the end of thejaw on the oppositeside of the spindle, a flat link pivotally secured to theoppositely-located ends of each pair of jaws in position to hold saidends in alinement with each other, and means for forcing either pair ofjaws out of engagement with the spindle.

28. In a drill, a support, a hollow spindlebearing mounted on thesupport so as to be rotatably adjustable, one end of which is providedwith an arm, a longitudinally-movable spindle rotatably mounted in thebearing, a two-part clutch on the spindle, a lever connected with onemember of the clutch, a link for connecting one end of the lever withthe arm, and means for releasing either part of the clutch from thespindle.

29. The combination of a bearing, a drillspindle mounted to moverotatably and longitudinally in said bearing, a manual operating-leverconnected with said bearing and a reversing-clutch connected to saidlever to clutch said drill-spindle to cause longitudinal movementthereof in one direction as the le ver is reciprocated, and manualoperating means to reverse the action of said clutch.

30. In a drill, a longitudinally-movable rotary spindle, a two-partclutch on the spindle, one part being rotatable and the othernonrotatable and each part being provided with a pair of clamping-jaws,the jaws of the two pairs facing in opposite directions longitudinallyof the spindle, means for causing the jaws on the rotatable part of theclutch to engage with the spindle when the drill is being fed forwardand for causing these on the non-rotatable part to engage with it whenthe drill is being withdrawn.

31. In a drill, a longitudinally-movable rotary hollow spindle, one endof which is adapted to receive a drill and the other end is perforatedand provided with means for connecting a motor therewith, aninternally-recessed sleeve mounted on the perforated portion of thespindle and provided with a hollow handle adapted to receive a pipe froma source of water-supply, and a two-part clutch for engaging with thespindle, one part being rotatable and adapted to be in engagement whenthe spindle is fed forward and the other part is non-rotatable andadapted to be in engagement when the spindle is being withdrawn.

82. The combination of a bearing, a drillspindle mounted to moverotatably and longitudinally in said bearing, an operating-leverconnected with said bearing and a reversing-clutch connected to saidlever to clutch said drill-spindle to cause longitudinal movementthereof in one direction as the lever is reciprocated, and operatingmeans to reverse the action of said clutch.

83. In a drill, a pivoted bearing, a support therefor, a longitudinallymovable rotary drill-spindle mounted in the bearing andmanually-operated means connected with the bearing for moving thespindle longitudinally in either direction, said means being adapted toautomatically engage with the spindle when moved in one direction and tobe forcibly engaged with it when moved in the opposite direction.

FKEDERIC WILKINSON OLCO'IT.

itnesses:

J AMns R. Townsnnn, G. R. l/VILTON.

